Improved out-coupling efficiency from a green microcavity OLED with a narrow band emission source

Tyler Fleetham, Jeremy Ecton, Guijie Li, Jian Li

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A highly efficient green microcavity organic light emitting diode was developed using a tetradentate cyclometalated platinum complex, PtN1N, with an intrinsically narrow emission spectral band (FWHM = 18 nm). Devices employing the narrow band emitter in MOLEDs consisting of a single pair of a high index dielectric, Ta2O5, and low index dielectric, SiO2, exhibited a high peak external quantum efficiency of 33.7% compared to a standard OLED in the same device architecture with a peak external quantum efficiency of 25.6%. We have also found in our study that narrow band emission sources in tuned microcavity OLEDs exhibit larger enhancements in light out-coupling efficiency accompanied by small changes in color with respect to viewing angle compared to broad band emitters which is advantageous in display applications.

Original languageEnglish (US)
Pages (from-to)141-147
Number of pages7
JournalOrganic Electronics: physics, materials, applications
Volume37
DOIs
StatePublished - Oct 1 2016

Fingerprint

Microcavities
Organic light emitting diodes (OLED)
Light sources
narrowband
quantum efficiency
emitters
Quantum efficiency
spectral bands
platinum
light emitting diodes
broadband
Full width at half maximum
Platinum
color
augmentation
Display devices
Color

Keywords

  • Light extraction
  • Microcavity
  • Narrow spectral emission band
  • Platinum complexes

ASJC Scopus subject areas

  • Biomaterials
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Electrical and Electronic Engineering
  • Chemistry(all)
  • Condensed Matter Physics

Cite this

Improved out-coupling efficiency from a green microcavity OLED with a narrow band emission source. / Fleetham, Tyler; Ecton, Jeremy; Li, Guijie; Li, Jian.

In: Organic Electronics: physics, materials, applications, Vol. 37, 01.10.2016, p. 141-147.

Research output: Contribution to journalArticle

@article{f9a2a748cb5447a7aa851cb3b9c6c11f,
title = "Improved out-coupling efficiency from a green microcavity OLED with a narrow band emission source",
abstract = "A highly efficient green microcavity organic light emitting diode was developed using a tetradentate cyclometalated platinum complex, PtN1N, with an intrinsically narrow emission spectral band (FWHM = 18 nm). Devices employing the narrow band emitter in MOLEDs consisting of a single pair of a high index dielectric, Ta2O5, and low index dielectric, SiO2, exhibited a high peak external quantum efficiency of 33.7{\%} compared to a standard OLED in the same device architecture with a peak external quantum efficiency of 25.6{\%}. We have also found in our study that narrow band emission sources in tuned microcavity OLEDs exhibit larger enhancements in light out-coupling efficiency accompanied by small changes in color with respect to viewing angle compared to broad band emitters which is advantageous in display applications.",
keywords = "Light extraction, Microcavity, Narrow spectral emission band, Platinum complexes",
author = "Tyler Fleetham and Jeremy Ecton and Guijie Li and Jian Li",
year = "2016",
month = "10",
day = "1",
doi = "10.1016/j.orgel.2016.05.041",
language = "English (US)",
volume = "37",
pages = "141--147",
journal = "Organic Electronics",
issn = "1566-1199",
publisher = "Elsevier",

}

TY - JOUR

T1 - Improved out-coupling efficiency from a green microcavity OLED with a narrow band emission source

AU - Fleetham, Tyler

AU - Ecton, Jeremy

AU - Li, Guijie

AU - Li, Jian

PY - 2016/10/1

Y1 - 2016/10/1

N2 - A highly efficient green microcavity organic light emitting diode was developed using a tetradentate cyclometalated platinum complex, PtN1N, with an intrinsically narrow emission spectral band (FWHM = 18 nm). Devices employing the narrow band emitter in MOLEDs consisting of a single pair of a high index dielectric, Ta2O5, and low index dielectric, SiO2, exhibited a high peak external quantum efficiency of 33.7% compared to a standard OLED in the same device architecture with a peak external quantum efficiency of 25.6%. We have also found in our study that narrow band emission sources in tuned microcavity OLEDs exhibit larger enhancements in light out-coupling efficiency accompanied by small changes in color with respect to viewing angle compared to broad band emitters which is advantageous in display applications.

AB - A highly efficient green microcavity organic light emitting diode was developed using a tetradentate cyclometalated platinum complex, PtN1N, with an intrinsically narrow emission spectral band (FWHM = 18 nm). Devices employing the narrow band emitter in MOLEDs consisting of a single pair of a high index dielectric, Ta2O5, and low index dielectric, SiO2, exhibited a high peak external quantum efficiency of 33.7% compared to a standard OLED in the same device architecture with a peak external quantum efficiency of 25.6%. We have also found in our study that narrow band emission sources in tuned microcavity OLEDs exhibit larger enhancements in light out-coupling efficiency accompanied by small changes in color with respect to viewing angle compared to broad band emitters which is advantageous in display applications.

KW - Light extraction

KW - Microcavity

KW - Narrow spectral emission band

KW - Platinum complexes

UR - http://www.scopus.com/inward/record.url?scp=84976433421&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84976433421&partnerID=8YFLogxK

U2 - 10.1016/j.orgel.2016.05.041

DO - 10.1016/j.orgel.2016.05.041

M3 - Article

VL - 37

SP - 141

EP - 147

JO - Organic Electronics

JF - Organic Electronics

SN - 1566-1199

ER -